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(No Model.)

F. K. WRIGHT.

TUBULAR LANTERN.

No.-498,045. Patented May 23, 1893.

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UNITED STATES PATENT OFFICE.

FREDERICK K. WRIGHT, OF SYRACUSE, NEW YORK, ASSIGNOR TO THE STEAM GAUGEAND LANTERN COMPANY, OF SAME PLACE, AND THE R. E. DIETZ COMPANY, on NEWYoRK, N. Y.

TU BU LAR LANTERN.

SPECIFICATION forhhing part of Letters Patent No. 498,045, dated May 23,1893.

Application filed December 2,1891. Serial No.413,771. (No model.)

To all whom it may concern:

Be it known that I, FREDERICK K. WRIGHT, a citizen of the United States,residing at Syracuse, inthe county of Onondaga and State of New York,have invented a new and useful Improvement in Tubular Lanterns, of whichthe following is a specification.

This invention relates to a tubular lantern in which the globe ismounted in a frame which can be moved vertically in the tubular lanternframe for the purpose of exposing the burner for trimming and lightingthe wick, (be.

The object of my invention is to provide a simple device whereby theglobe frame can I 5 be easily raised and lowered and held in eitherposition.

In the accompanying drawings: Figure 1 is an oblique front elevation ofa tubular lantern provided with my improvements show- :0 ing the globeframe in its lowered position. Fig. 2 is a vertical section in line y-yFig. 1. Fig. 3 is a horizontal section in line m-w Fig. 1, lookingupwardly. Fig. 4 is a fragmentary vertical section of the lower portionof the lantern showing the globe frame raised.

Like letters of reference refer to like parts in the several figures.

A represents the oil pot of the lantern, B the air-chamber, C theburner, D the upright 0 portions of the air tubes, (1 d the lower and ee the upper horizontal branches thereof and E the central dependingtube, forming together the rigid tubular lantern frame.

F represents the perforated plate which 3 5 surrounds the burner andupon which the globe G rests.

I-I represents the bell arranged above the globe and made verticallymovable on the depending tube. The bell and globe supporting plate areconnected by upright wires h h which pass through guide loops 6 esecured to the upright portions of the tubes. The globe is firmly heldupon the supporting plate F by a spring J secured to the bell. Theperforated plate, the bell and the upright wires form the verticallymovable frame in which the globe is mounted. All of these parts may beof any ordinary or suitable construction.

K represents a lever whereby the globe frame is raised and lowered. Thislever consists essentially of an outer arm Z and an inner arm m arrangedrespectively on the outer and inner sides of one of the side tubes andconnected by a horizontal wrist n. The wrist of the lever is arrangedradially or nearly so with reference to the globe and journaled inopenings formed in one of the side tubes so that the arms of the leverswing backwardly and forwardly in the lantern frame. The inner arm ofthe lever is provided with an inwardly projecting finger 0 which bearsagainst the under side of the globe supporting plate.

P represents a loop which is secured longitudinally to the under side ofthe globe supporting plate and which guides and confines the finger 0 ofthe elbow lever. This loop extends a short distance rearwardly beyondthe wrist of the lever and its rear end q forms a stop which limits therearward movement of the finger. The loop extends forwardly a sufficientdistance to allow the finger to swing freely from its highest to itslowest position. The outer or free arm of the lever is preferablyprovided with a thumb piece r for manipulating the same.

When the globe and its frame are in their normal, lowered position theouter arm of the lever extends upwardly and the inner arm extendsdownwardly and slightly rearwardly and bears against the rear end of theloop, as represented in Figs. 1, 2, and 3. The rear end of the loopprevents further rearward movement of the inner arm and so resists anyupper pressure which may be applied to the globe frame and therebysecurely holds the latter upon the burner. When it is desired to raisethe globe frame the outer arm of the lever is swung rearwardly anddownwardly, as indicated by the dotted arrow in Fig. 1 until the innerarm extends upwardly and rearwardly and its finger again rests againstthe rear end of the loop, as represented in Fig. 4. Theweight of theglobeandits frame holds the finger against the rear end of the loop,thereby preventing the finger from being swung forwardly by accident andholding the globe frame securely in an elevated posi- .tion.

The guides which control the up and down movement of the globe frameprevent the lower end of the globe frame from moving back and forth withthe finger of the lifting lever and cause the swinging movement of thelatter to produce only an'up and down movement of the globe frame. Bythis arrangement of the loop on the supportingplate with reference tothe finger of the lever an extremely simple and a perfectly reliablelock is formed whereby the globe frame is securely held either in araised or lowered position. 7

I claim as my invention The combination with the tubular lantern frameand the vertically movable globe frame guided in said lantern frame, ofalifting and locking lever journaled transversely in the tubular lanternframe to swing backwardly FREDERICK K. WRIGHT.

Witnesses;

ROBT. W. GoERs, P. L. SALMON.

